diff --git a/pkgs/tools/text/difftastic/Cargo.lock b/pkgs/tools/text/difftastic/Cargo.lock
index 1d0974afe898..549f575426c4 100644
--- a/pkgs/tools/text/difftastic/Cargo.lock
+++ b/pkgs/tools/text/difftastic/Cargo.lock
@@ -84,9 +84,12 @@ checksum = "72feb31ffc86498dacdbd0fcebb56138e7177a8cc5cea4516031d15ae85a742e"
 
 [[package]]
 name = "cc"
-version = "1.0.78"
+version = "1.0.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
+checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
+dependencies = [
+ "libc",
+]
 
 [[package]]
 name = "cfg-if"
@@ -234,7 +237,7 @@ checksum = "6184e33543162437515c2e2b48714794e37845ec9851711914eec9d308f6ebe8"
 
 [[package]]
 name = "difftastic"
-version = "0.50.0"
+version = "0.51.1"
 dependencies = [
  "assert_cmd",
  "bumpalo",
@@ -245,7 +248,7 @@ dependencies = [
  "glob",
  "hashbrown 0.12.3",
  "humansize",
- "itertools",
+ "itertools 0.11.0",
  "lazy_static",
  "libc",
  "libmimalloc-sys",
@@ -259,6 +262,8 @@ dependencies = [
  "rayon",
  "regex",
  "rustc-hash",
+ "serde",
+ "serde_json",
  "strsim",
  "strum",
  "tree-sitter",
@@ -400,6 +405,21 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1c173a5686ce8bfa551b3563d0c2170bf24ca44da99c7ca4bfdab5418c3fe57"
+dependencies = [
+ "either",
+]
+
+[[package]]
+name = "itoa"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -591,7 +611,7 @@ checksum = "a5aab5be6e4732b473071984b3164dbbfb7a3674d30ea5ff44410b6bcd960c3c"
 dependencies = [
  "difflib",
  "float-cmp",
- "itertools",
+ "itertools 0.10.3",
  "normalize-line-endings",
  "predicates-core",
  "regex",
@@ -731,6 +751,12 @@ version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4f3208ce4d8448b3f3e7d168a73f5e0c43a61e32930de3bceeccedb388b6bf06"
 
+[[package]]
+name = "ryu"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ad4cc8da4ef723ed60bced201181d83791ad433213d8c24efffda1eec85d741"
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -746,6 +772,37 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
+[[package]]
+name = "serde"
+version = "1.0.176"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76dc28c9523c5d70816e393136b86d48909cfb27cecaa902d338c19ed47164dc"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.176"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4e7b8c5dc823e3b90651ff1d3808419cd14e5ad76de04feaf37da114e7a306f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.27",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.104"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "076066c5f1078eac5b722a31827a8832fe108bed65dfa75e233c89f8206e976c"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "signal-hook"
 version = "0.3.14"
@@ -891,9 +948,9 @@ dependencies = [
 
 [[package]]
 name = "typed-arena"
-version = "2.0.1"
+version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0685c84d5d54d1c26f7d3eb96cd41550adb97baed141a761cf335d3d33bcd0ae"
+checksum = "6af6ae20167a9ece4bcb41af5b80f8a1f1df981f6391189ce00fd257af04126a"
 
 [[package]]
 name = "unicode-ident"
diff --git a/pkgs/tools/text/difftastic/default.nix b/pkgs/tools/text/difftastic/default.nix
index 520afe5a3024..77fa6334f16e 100644
--- a/pkgs/tools/text/difftastic/default.nix
+++ b/pkgs/tools/text/difftastic/default.nix
@@ -16,13 +16,13 @@ in
 
 rustPlatform.buildRustPackage rec {
   pname = "difftastic";
-  version = "0.50.0";
+  version = "0.51.1";
 
   src = fetchFromGitHub {
     owner = "wilfred";
     repo = pname;
     rev = version;
-    hash = "sha256-CC06Bryn5VNEsW4Wwbo+ubifizCWgpWUE1FsAozZcdg=";
+    hash = "sha256-u03UL5QB0mdMTgRtxVe4pgLlCeLx1cG7czo7uBKQI84=";
   };
 
   cargoLock = {